Rolling mill



Aug. 28, 1934. s HOLETON 1,971,982

ROLLING MILL Filed OOL. 8, 1931 2 She'etsShee?. l

ATTORNEYS S. HOLETON ROLLING MILL Aug. 28, 1934.

Filed Oct. 8, 1931 2 Sheets-Sheet I INVENTOR f///a/Zdza/ M25@ BY p# ana( ATTORNEYS Patented ug. 28,1934

gPirrENi oFFIc'E l ROLLING MILL Strickland Holeton, Hamburg, N. Y.r

Aplllleation October-d8,

' 3 claims.

` This invention relates to improvements in rolling mills of the kind in which the rolls may be 1'0'1 At other times, however, it is advantageous that the axes of the rolls be slightly crossed during the rolling operation, this arrangementof the rolls tending to compensate for the increased spring of the centers of the rolls and thereby reducing 'the convexity of thesheets or packs. In any event, during operation of the mill, there is considerable wear upon certain parts thereof as, for example, the brasses, such wearing of the parts tending to destroy the adjusted relation in which the rolls are operating. It will be apparent, therefore, that a, mill of the type generally described not only has the advantage that it is flexible to meet different rolling requirements but also has the advantage that it is capable of adjustment to compensate for wearing of the parts of the mill;

One object of the present invention is to provide a construction of the type generally described which is designed to enable minute adjustments of therolls. l A further object is to provide a construction which will permit of the convenient `removal of the parts of the mill `n'fwhich the necks of the rolls are adjustably carried when this is necessary to effect the repair orreplacement? of the said parts or the repair or replacement of the rolls.

A still further object is to provide a'novel construction and arrangement fof the parts of the mill whereby simplicity and economy in construction are obtained. I

The invention is illustrated in ing drawings in .which:-

Figure 1 is an end elevation-of a mill' constructionin accordance with theinvention. Y v4Figure 2 is a fragmentary section ofthe mill taken along line 2 2 of Figure 1. Y 1

Figure 3 is a fragmentarysection taken along line3-3 of Figure 1. i, A

p Figure 4 is a fragmentary View partly in elevation taken along line 4-4 of Figure 3;

' a four-high mill. Itis to beunderstood, however, that this is by way of illustration only` as the accompanythe advantages Yof the invention may beobtained with its usein connection-'with other types of mills such as, for example; atwo-highmill.

The invention-,is illustrated in connectionwith 1931, Serial No. 567,593

The mill, as illustrated, is provided with upper and lower working rolls 10 and 11 respectively and upper and lower companion backing rolls 12 and 13 respectively, all of the said rolls being carried in suitable housings 14. The latter are of conventional forml and in'order to clarify illustration of the invention and avoid duplication of similar parts only one of the said housings is shown. The housing 14 is formed or provided with a window 15.`

The necks 16 of the workingA rolls are journalled in blocks 17 which are arranged in the window 15. Each of the said blocksv is substantially shorter in length than the width of the window and by virtue of the fact that the block is arranged lengthwise in the window, it may be adjusted in a horizontal plane between the side walls of the window, any such movement, of course, being transmitted through the roll neck to the roll. The latter, therefore, may be adjusted in this manner so that its axis may be aligned with the axis of the companioiiworking roll or it may be adjusted so that its axis is crossed slightly with respect to the axis of the said working roll, it being understood that in the milly illustrated such adjustment of the roll 10` will be in a substantially horizontal plane. V

In order to adjust the block 17 in the manner described and in order tomaintain the latter in the position to which it is adjusted, each of they said blocks is provided at opposite sides of the neck of the roll with oppositely disposed elements 18, the heads 19 of which too-operate with-the sidewalls of the window 15. The bodiesfof'each ofthe elements 13 is threaded at 20 to enable adjustment of their heads relative to the block. As illustrated, the latter is provided withoppositely disposed openings 21 in which` the said elements are carried, the connection between the threaded body 20 of the elements and the block being effected through the medium of an internallythreaded collar 2.2, thelatter being suitably keyed'to the body as at 23. It is to be understood that' the connection between the threaded bodies of the elements and the block may be direct if the threaded collars are not desired. The openings 21 are preferably enlarged `as at 24v toraccommodate the heads 19 of the elements. y It will be apparent that the elements 18 maybe adjusted so that the distance between the' faces of their heads maybe substantially equal to the distance between the side walls of the window. In other words, the heads .19fof the elements-'extend beyond the ends of the block. Hence it will beobvious that by adjusting the elements one in one the over-all distance between the faces of their heads maybe maintained while .the relative distances between the axis of the roll at any point within the block and the faces of the heads of the opposite elements are varied. vIt will be apparent that in adjusting the neck at one end of the roll in this mannerthat if the neck at the opposite of` the roll is not adjusted in the same direction and to thev same extent thatv the `axis of the adjusted roll willbe inclined relative to the axis of the companion roll. Inasmuch as the i practical limits between which it is necessary that the rolls be adjustable are relatively small it is unnecessary to design the various parts especially to enable adjustments inthe manner described, any such adjustments being compensated for ortaken up by the various parts of the 1 mill.

In order to insure ease of adjustment of theV elements a lubricantmay be supplied ,tol the bodies20 thereof through ducts 25 formed Vin the vblocks 17 opposite the body portions, the collars 22 when availed of being formed with ductsY 26 which registerrwith the ducts 25. Y

VThe heads 19 ofthe elements are formed with a seriesof radially extending holes 27, preferably one or more of the said holes being accessible from the front of the housing 14; Opposite the heads 19, the blocks are cut away as -at'28 to insure convenient access tothe holes 27 at times when the, heads 19 of the elements bersubstantiallyentirely within the body of the block,

the said openings being large enough to expose a considerable part of thesperiphe'ries of the heads 22 and preferably two ofthe said holes regardlessV of the positions to `which the elements may be adjusted. Thus, an element may be adjusted'to effect the desired adjustment of the roll by inserting a suitable tool in an accessible hole 27 in the head of the element and then manipulating theA tool to rotate the element in the direction necessary to obtain such adjustment. Thus, forexarnple, ifl the adjustment of the roll is such asY to require movement of the neck 16 of the roll- 10 toward one of the elements, that element is lrotated so that its ,head` is moved away from the adjacentwall of the windowv 15. Then the `opposite elementis rotated vso that its head is moved in the same` directionthat is to say-toward the adjacent wall of the window. The head of this element, however, atthe time is substantially already in contactwith the said wall; Upon rotationtherefore, the saidfelement, acting against the kadjacent wall of the window, moves the block away from the said wall toward the Opposite wall of thevwindow and the said elementy isk rotatedl until the opposite elementl reaches jthe opposite wall, at which point thev parts co-operate in the desired manner. lThe holes 17 are preferably uniformly spaced so that they Vmay be utilized to Ydetermine the amount of adjustment necessary, that is to say, if oneclement is moved through an angular distance equal to the angle between four of the holes 127, then fupon movement of the opposite element through the sameangular position, which movement may be determined by the holes inthe said element,

the heads ofthe two elements will co-operate in the desiredmanner with the walls of the window 15V. After one end of .theroll has Abeen adjusted in the manner described, the opposite end of the roll may `beadjusted in a similar manner, al-`V though in this case the neck ofthe roll s will be moved in an opposite direction.

co-operate with the elements.

pair or replacement of any suchpart's.

n 1,971,982 `direction and the other in the opposite direction therefore, that inward movement of the block 17 is prevented by the headsof the brasses which engage the en d of the body portion of the roll. Outward movement of the said block is prevented by clamps 33. The: latter are secured intermediate their ends to the housing 14 as best shown in ligureY l'by studs 34 which pass through slots ,35' inthe clamps. 'Ihe Vslots extend lengthwise of the clampsand hence upon loosening ofthe studs :to aY s ufcientextent they may be moved outwardly in, the direction of their length whereby they areremoved from lin front of block 16 which then may-*be withdrawnfrom the Window 15. Thev construction described,.therefore, has the advantage that the ,partsr by which adjustment of the blocks is obtained are carried by the said blocks and hence maybe conveniently removed withthe` latterfrom thewindow when it becomes necessary to repair or replace any of such parts ory tofrecondition or replace the rolls..

The backingrolls 12 and 13 which co-operate `with the working rolls', maybe of conventional construction and the adjustment Aof the upperroll 1 2 is obtained in the usual manner by screws 37.

' From the foregoing it will be apparentthat the rollsof the-mill may be adjusted either to meet different rolling Vrequirements or to compensate for anyV wearing of the partsv of the mill.- rIVhe construction described enables minute acustments of the rolls, this being primarily; due to the fact that the elements by which the adjustments are made co-operatejdirectly with the walls of the window, whereby there areno intermediate parts to Yprovide play or lost motion between the adjustingelements Vand those parts of the mill which In'addition to this advantage y'the use of the elements in the manner described has the further advantage that a simple, and hence economical, construction is provided. The-variousparts. ofthe mill` which carry the rolls and .permittheir adjustment may be quickly and convenientlyremovedin-order to enable're- In' the illustrated embodiment of Vthe invention bothof thegw'orking rolls are shown'as adjustable. LIt is to be understood; however, that this is by way of y illustration only as benecialzresults maybe obtained by the use of a single axustable roll.v

I claimasmy invention; j y

1.` In a rolling mill having ahousing provided with a window; a pair of `working rolls," means in said window in which .the Vneck of one ofrsaicl' rolls isjournaledy and threaded Velements carriedby said means, said'elements being formedwlthheads whichzslidably ens'agethe side walls of said iwindowtomaintain a selected axial relation between saidlast'mentioned roll and the. other of said rolls, said heads beingv formed for engagement with a suitable tool, whereby said elementl may bead- Ajusted, Vatwill, to varythe selectedaxial-l relation of the rolls." f

A 2.A In arolling mill having la yhousing provided with a-window, ya pair o fzworkring rolls, meansin said window `in which thel'neck of oneof said rolls is journaled and threaded elements carried by-said means, said elements being provided with headed portions which slidably engage the side walls of said Window to maintain a selected axial relation between said last mentioned rollA and the other of said rolls, vsaid portions being formed with radially extending holes accessible from the front of said housing and by means of which said element may be adjusted, atwill, to vary the selected axial relation of the rolls.

3. In a rolling mill having a housing provided with a Window, a pair of working rolls, means in which the neck of one of said rolls is journaled, threaded elements carried by said means, said elements being formed with heads which slidably engage the side walls of said Window to maintain a selected axial relation between said last mentionedroll and the other of said rolls, said heads being' formed with a plurality of radially extending holes and recesses formed in said means to accommodate the heads of said elements, said means being cut away adjacent said recesses to provide convenient access to said holes to permit the use of a suitable tool in adjusting said elements, whereby said elements may be adjusted, at will, to vary the selected axial relation of the rolls.

`STRICKLAND HOLETON. 

